The data also reveal that the shallower magma zone is about 9 percent melted rock, and the newly found lower zone is 2 percent melted. Neither is a giant chamber of magma and neither is in any danger of erupting -- contrary to popular misconceptions -- say the researchers.

The data also reveal that the shallower magma zone is about 9 percent melted rock, and the newly found lower zone is 2 percent melted. Neither is a giant chamber of magma and neither is in any danger of erupting -- contrary to popular misconceptions -- say the researchers.